1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac3a700070cbc9a958c50eb6bab4e6743aa43d3e93bcdc88251f81118e207dc. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a6d8045-0788-4e07-9317-07a932132820.json and https://artists.proofprofile.net/proofs/artist/6a6d8045-0788-4e07-9317-07a932132820.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xd4061fd9ef019f7be2da616169fd9cb8de29a266e3d3c7f98c0c532868023fbf","isrc":"USUYG1545253","name":"WORKOUT (feat. Rodney O)","registered_at":"2026-06-11T06:31:27Z","spotify_id":"0U0Pdr2nJo2tFZgK9qUNZt","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4061fd9ef019f7be2da616169fd9cb8de29a266e3d3c7f98c0c532868023fbf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0U0Pdr2nJo2tFZgK9qUNZt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0U0Pdr2nJo2tFZgK9qUNZt.
When the Old School Plays (feat. Rodney O, Big Chacho, & Chino Brown)
How the West Was Won (feat. DJ Quik & Rodney O)
{"copyright_id":"0xd4061fd9ef019f7be2da616169fd9cb8de29a266e3d3c7f98c0c532868023fbf","isrc":"USUYG1545253","name":"WORKOUT (feat. Rodney O)","registered_at":"2026-06-11T06:31:27Z","spotify_id":"6lYdGcRHNM90QhBb0knjqf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4061fd9ef019f7be2da616169fd9cb8de29a266e3d3c7f98c0c532868023fbf. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6lYdGcRHNM90QhBb0knjqf.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6lYdGcRHNM90QhBb0knjqf.
Crime or Rhyme (feat. Rodney O, Mister D, Big Chacho, Ese Bobby, & Spanky)